Gemba is Japanese for “the real place” — where value is created: the shop floor, the warehouse, the case handling. A gemba walk is a structured management round on site with the purpose of observing, asking and understanding — not controlling.
The principle behind gemba is that problems cannot be understood from a meeting room. Data in a report shows that something is wrong; only at the gemba can you see why. A good gemba walk follows a fixed route, asks open questions (“what stops you from reaching the target?”) and notes deviations without assigning blame.
The pitfall is turning gemba walks into inspection. The moment employees experience the round as control, the information dries up — and management only sees what has been dressed up for the occasion.